package oneway;

import org.apache.rocketmq.client.producer.DefaultMQProducer;
import org.apache.rocketmq.client.producer.SendResult;
import org.apache.rocketmq.common.message.Message;
import org.apache.rocketmq.remoting.common.RemotingHelper;

public class OnewayProducer {
	public static void main(String[] args) throws Exception {
    	// 实例化消息生产者Producer
        DefaultMQProducer producer = new DefaultMQProducer("oneway_group_name");
    	// 设置NameServer的地址
    	producer.setNamesrvAddr("localhost:9876");
    	// 启动Producer实例
        producer.start();
		// 创建消息，并指定Topic，Tag和消息体
		Message msg = new Message("oneway_order_topic" /* Topic */,
				"oneway_employee_tag" /* Tag */,
				"单向消息".getBytes()
		);
		// 发送单向消息到一个Broker
		producer.sendOneway(msg);
		// 通过sendResult返回消息是否成功送达
		System.out.println("发送单向消息成功");
    	// 如果不再发送消息，关闭Producer实例。
    	producer.shutdown();
    }
}